Turn signal handle adaptor



FIG. 1 is a perspective view of a turn signal handle adaptor showing my new design, it being understood that the turn signal lever and speed control switch shown in broken lines if for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a rear elevation view thereof; and

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a turn signal handle adaptor, as shown and described. 